17 #include "TouchGate.h"
19 #include <QCoreApplication>
22 #include <TouchOwnershipEvent.h>
23 #include <TouchRegistry.h>
26 #include <DebugHelpers.h>
29 bool TouchGate::event(QEvent *e)
31 if (e->type() == TouchOwnershipEvent::touchOwnershipEventType()) {
32 touchOwnershipEvent(static_cast<TouchOwnershipEvent *>(e));
35 return QQuickItem::event(e);
39 void TouchGate::touchEvent(QTouchEvent *event)
42 qDebug() <<
"[TouchGate] got touch event" << qPrintable(touchEventToString(event));
46 const QList<QTouchEvent::TouchPoint> &touchPoints =
event->touchPoints();
48 for (
int i = 0; i < touchPoints.count(); ++i) {
49 const QTouchEvent::TouchPoint &touchPoint = touchPoints[i];
51 if (touchPoint.state() == Qt::TouchPointPressed) {
52 Q_ASSERT(!m_touchInfoMap.contains(touchPoint.id()));
53 m_touchInfoMap[touchPoint.id()].ownership = OwnershipRequested;
54 m_touchInfoMap[touchPoint.id()].ended =
false;
55 TouchRegistry::instance()->requestTouchOwnership(touchPoint.id(),
this);
60 goodToGo &= m_touchInfoMap.contains(touchPoint.id())
61 && m_touchInfoMap[touchPoint.id()].ownership == OwnershipGranted;
63 if (touchPoint.state() == Qt::TouchPointReleased && m_touchInfoMap.contains(touchPoint.id())) {
64 m_touchInfoMap[touchPoint.id()].ended =
true;
70 if (m_storedEvents.isEmpty()) {
72 dispatchTouchEventToTarget(event);
77 qDebug(
"[TouchGate] Storing event because thouches %s are still pending ownership.",
78 qPrintable(oldestPendingTouchIdsString()));
80 storeTouchEvent(event);
84 storeTouchEvent(event);
88 void TouchGate::touchOwnershipEvent(TouchOwnershipEvent *event)
93 Q_ASSERT(m_touchInfoMap.contains(event->touchId()));
95 TouchInfo &touchInfo = m_touchInfoMap[
event->touchId()];
97 if (event->gained()) {
99 qDebug() <<
"[TouchGate] Got ownership of touch " <<
event->touchId();
101 touchInfo.ownership = OwnershipGranted;
104 qDebug() <<
"[TouchGate] Lost ownership of touch " <<
event->touchId();
106 m_touchInfoMap.remove(event->touchId());
107 removeTouchFromStoredEvents(event->touchId());
110 dispatchFullyOwnedEvents();
113 bool TouchGate::isTouchPointOwned(
int touchId)
const
115 return m_touchInfoMap[touchId].ownership == OwnershipGranted;
118 void TouchGate::storeTouchEvent(
const QTouchEvent *event)
121 qDebug() <<
"[TouchGate] Storing" << qPrintable(touchEventToString(event));
124 TouchEvent clonedEvent(event);
125 m_storedEvents.append(std::move(clonedEvent));
128 void TouchGate::removeTouchFromStoredEvents(
int touchId)
131 while (i < m_storedEvents.count()) {
132 TouchEvent &
event = m_storedEvents[i];
133 bool removed =
event.removeTouch(touchId);
135 if (removed && event.touchPoints.isEmpty()) {
136 m_storedEvents.removeAt(i);
143 void TouchGate::dispatchFullyOwnedEvents()
145 while (!m_storedEvents.isEmpty() && eventIsFullyOwned(m_storedEvents.first())) {
146 TouchEvent
event = m_storedEvents.takeFirst();
147 dispatchTouchEventToTarget(event);
152 QString TouchGate::oldestPendingTouchIdsString()
154 Q_ASSERT(!m_storedEvents.isEmpty());
158 const auto &touchPoints = m_storedEvents.first().touchPoints;
159 for (
int i = 0; i < touchPoints.count(); ++i) {
160 if (!isTouchPointOwned(touchPoints[i].
id())) {
161 if (!str.isEmpty()) {
164 str.append(QString::number(touchPoints[i].
id()));
172 bool TouchGate::eventIsFullyOwned(
const TouchGate::TouchEvent &event)
const
174 for (
int i = 0; i <
event.touchPoints.count(); ++i) {
175 if (!isTouchPointOwned(event.touchPoints[i].id())) {
183 void TouchGate::setTargetItem(QQuickItem *item)
188 if (item == m_dispatcher.targetItem())
191 m_dispatcher.setTargetItem(item);
192 Q_EMIT targetItemChanged(item);
195 void TouchGate::dispatchTouchEventToTarget(
const TouchEvent &event)
197 removeTouchInfoForEndedTouches(event.touchPoints);
198 m_dispatcher.dispatch(event.eventType,
206 void TouchGate::dispatchTouchEventToTarget(QTouchEvent* event)
208 removeTouchInfoForEndedTouches(event->touchPoints());
209 m_dispatcher.dispatch(event->type(),
212 event->touchPoints(),
217 void TouchGate::removeTouchInfoForEndedTouches(
const QList<QTouchEvent::TouchPoint> &touchPoints)
219 for (
int i = 0; i < touchPoints.size(); ++i) {\
220 const QTouchEvent::TouchPoint &touchPoint = touchPoints.at(i);
222 if (touchPoint.state() == Qt::TouchPointReleased) {
223 Q_ASSERT(m_touchInfoMap.contains(touchPoint.id()));
224 Q_ASSERT(m_touchInfoMap[touchPoint.id()].ended);
225 Q_ASSERT(m_touchInfoMap[touchPoint.id()].ownership == OwnershipGranted);
226 m_touchInfoMap.remove(touchPoint.id());
231 TouchGate::TouchEvent::TouchEvent(
const QTouchEvent *event)
232 : eventType(event->type())
233 , device(event->device())
234 , modifiers(event->modifiers())
235 , touchPoints(event->touchPoints())
236 , target(qobject_cast<QQuickItem*>(event->target()))
237 , window(event->window())
238 , timestamp(event->timestamp())
242 bool TouchGate::TouchEvent::removeTouch(
int touchId)
244 bool removed =
false;
245 for (
int i = 0; i < touchPoints.count() && !removed; ++i) {
246 if (touchPoints[i].
id() == touchId) {
247 touchPoints.removeAt(i);